Polytetrafluoroethylene textile and manufacturing method thereof

ABSTRACT

A polytetrafluoroethylene textile and manufacturing method thereof is disclosed. The method of manufacturing the polytetrafluoroethylene textile comprises: providing a polytetrafluoroethylene yarn and an artificial fiber yarn; and performing a knitting process to knit the polytetrafluoroethylene yarn and the artificial fiber yarn together to thereby obtain the polytetrafluoroethylene textile. The polytetrafluoroethylene textile comprises: an artificial fiber structural layer comprising a plurality of artificial fiber yarns; and a polytetrafluoroethylene structural layer comprising a plurality of polytetrafluoroethylene yarns, and a part of the polytetrafluoroethylene yarns of the polytetrafluoroethylene structural layer and a part of the artificial fiber yarns of the artificial fiber structural layer are knitted together.

CROSS-REFERENCE TO RELATED APPLICATION

This application claims priority from Taiwan Patent Application No.105139002, filed on Nov. 25, 2016 and Taiwan Patent Application No.105218114, filed on Nov. 25, 2016, in the Taiwan Intellectual PropertyOffice, the content of which are hereby incorporated by reference intheir entirety for all purposes.

BACKGROUND OF THE INVENTION 1. Field of the Invention

The present invention relates to a textile and a manufacturing methodthereof, in particular with respect to a polytetrafluoroethylene textileand a manufacturing method thereof.

2. Description of the Related Art

In recent years, people gradually pay attention to the importance of theoutdoor leisure activities, exercise and fitness, and for sports dress,light and comfortable and other functional clothing have also beenstressed. Therefore, this type of functional clothing has graduallybecome the mainstream of development. In general, the outdoor leisureclothing that makes the user feel comfortable usually has thecharacteristic of surface water repellency, that is, its material ishydrophobic and also has the characteristic of draining moisture ofhuman body, that is, fabric with moisture absorbing and perspirationdissipation functions, which is needed for the current market demand.

In order to achieve the effects of waterproofing and moisture permeationof the fabric, it is usually used to coat the water repellent on thefabric or adhere the waterproof and moisture permeable film to thesurface fabric by coating or affixing method. However, the waterrepellent is often merely coated over the surface of the fabric bycoating the water repellent on the fabric. The water repellent will beeasily lost due to friction after repeated use, external friction andwashing, resulting in water repellent function decline and shortcomingsof poor durability. The original permeability of the fabric is oftendamaged because too much amount of resin coating block the pores betweenthe fabric fibers by using the affixing or lamination method to laminatethe waterproof and moisture permeable film on the surface of the fabric,resulting in shortcomings of obstructing permeability of the fabric.

SUMMARY OF THE INVENTION

In view of the aforementioned technical problems of the prior art, onepurpose of the present invention is to provide a polytetrafluoroethylenetextile and a manufacturing method thereof so as to solve the problem ofshortcomings of poor durability and permeability of the waterproof andmoisture fabric manufactured according to the prior art.

In order to accomplish the preceding purpose, the present inventionprovides a method of manufacturing a polytetrafluoroethylene textile,comprising: providing a polytetrafluoroethylene yarn and an artificialfiber yarn; and performing a knitting process to knit thepolytetrafluoroethylene yarn and the artificial fiber yarn together tothereby obtain the polytetrafluoroethylene textile.

In the method of manufacturing a polytetrafluoroethylene textile of thepresent invention, a pretreatment process is further performed beforeperforming the knitting process to make the polytetrafluoroethylene yarnhave at least one knit-assisting part for assisting knitting thepolytetrafluoroethylene yarn and the artificial fiber yarn together andconfining the artificial fiber yarn correspondingly to thereby obtainthe polytetrafluoroethylene textile, wherein the knit-assisting part isan expanded structure formed by at least two of thepolytetrafluoroethylene yarns, and a part of the artificial fiber yarnis configured to pass through the knit-assisting part to thereby knitwith the at least two of the polytetrafluoroethylene yarns.

The method of manufacturing a polytetrafluoroethylene textile of thepresent invention further comprises performing a laminating process tolaminate a water repellent fabric with the polytetrafluoroethylenetextile together.

Wherein the artificial fiber yarn is selected from a group consisting ofnylon yarn, polyester yarn and spandex yarn, the denier of thepolytetrafluoroethylene yarn being within a range of from 40 to 400denier, the denier of the nylon yarn being within a range of from 20 to280 denier, the denier of the polyester yarn being within a range offrom 20 to 300 denier, the denier of the spandex yarn being within arange of from 15 to 70 denier.

Wherein a weight ratio of the nylon yarn to the polytetrafluoroethyleneyarn is within a range of 25-45:55-75 if the artificial fiber yarn isthe nylon yarn, and a weight ratio of the polyester yarn to thepolytetrafluoroethylene yarn to the spandex yarn is within a range of50-65:34-40:1-10 if the artificial fiber yarn is consisted of thepolyester yarn and the spandex yarn.

Further, the present invention also provides a polytetrafluoroethylenetextile manufactured according to the method mentioned above. Thepolytetrafluoroethylene textile comprises an artificial fiber structurallayer comprising a plurality of artificial fiber yarns; and apolytetrafluoroethylene structural layer comprising a plurality ofpolytetrafluoroethylene yarns, and a part of the polytetrafluoroethyleneyarns of the polytetrafluoroethylene structural layer and a part of theartificial fiber yarns of the artificial fiber structural layer areknitted together.

Wherein the polytetrafluoroethylene structural layer has at least oneknit-assisting part for assisting knitting the part of thepolytetrafluoroethylene yarns and the part of the artificial fiber yarnstogether and confining the part of the artificial fiber yarnscorrespondingly to thereby obtain the polytetrafluoroethylene textile,wherein the knit-assisting part is an expanded structure formed by atleast two of the polytetrafluoroethylene yarns, and the part of theartificial fiber yarns of the artificial fiber structural layer isconfigured to pass through the knit-assisting part to thereby knit withthe at least two of the polytetrafluoroethylene yarns.

The method of manufacturing a polytetrafluoroethylene textile of thepresent invention further comprises a water repellent structural layerdisposed on the artificial fiber structural layer, and the waterrepellent structural layer and the polytetrafluoroethylene structurallayer are disposed on two opposite sides of the artificial fiberstructural layer respectively.

Wherein the artificial fiber structural layer is selected from a groupconsisting of nylon yarn layer, polyester yarn layer and spandex yarnlayer, the denier of the polytetrafluoroethylene yarns being within arange of from 40 to 400 denier, the denier of nylon yarns of the nylonyarn layer being within a range of from 20 to 280 denier, the denier ofpolyester yarns of the polyester yarn layer being within a range of from20 to 300 denier, the denier of spandex yarns of the spandex yarn layerbeing within a range of from 15 to 70 denier, and a weight ratio of thenylon yarn layer to the polytetrafluoroethylene structural layer iswithin a range of 25-45:55-75 if the artificial fiber structural layeris the nylon yarn layer, and a weight ratio of the polyester yarn layerto the polytetrafluoroethylene structural layer to the spandex yarnlayer is within a range of 50-65:34-40:1-10 if the artificial fiberstructural layer is consisted of the polyester yarn layer and thespandex yarn layer.

In accordance with the preceding description, thepolytetrafluoroethylene textile and the manufacturing method thereof ofthe present invention may have one or more following advantages:

(1) In the polytetrafluoroethylene textile and the manufacturing methodthereof of the present invention, the polytetrafluoroethylene textilewith characteristics of high durability and permeability can bemanufactured by knitting the polytetrafluoroethylene yarn(s) and theartificial fiber yarn(s) together.

(2) In the method of manufacturing the polytetrafluoroethylene textileof the present invention, the pretreatment process is performed beforeperforming the knitting process to make the polytetrafluoroethylene yarnhave the knit-assisting part to thereby facilitate knitting thepolytetrafluoroethylene yarn and the artificial fiber yarn together andconfining the artificial fiber yarn correspondingly. Therefore, thestructure of the polytetrafluoroethylene textile manufactured by themethod of the present invention is strong.

(3) In the polytetrafluoroethylene textile and the manufacturing methodthereof of the present invention, the abilities of waterproofing andmoisture permeation of the polytetrafluoroethylene textile can beimproved by performing the laminating process to laminate the waterrepellent fabric with the polytetrafluoroethylene textile together.

(4) In the polytetrafluoroethylene textile and the manufacturing methodthereof of the present invention, the manufacturedpolytetrafluoroethylene textile has excellent characteristics ofmoisture-proof, water resistance and water repellent by using specificmaterials and specifications of the artificial fiber yarn.

For better understanding and knowledge of the technical features andattainable technical effects of the present invention, it is to beunderstood that the preferred embodiments and the accompanying detaileddescription are given hereinafter.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic flow diagram of the first preferred embodiment ofthe method of manufacturing the polytetrafluoroethylene textile of thepresent invention.

FIG. 2 is a schematic flow diagram of the second preferred embodiment ofthe method of manufacturing the polytetrafluoroethylene textile of thepresent invention.

FIG. 3 is a schematic flow diagram of the third preferred embodiment ofthe method of manufacturing the polytetrafluoroethylene textile of thepresent invention.

FIG. 4 is a side view diagram of the first preferred embodiment of thepolytetrafluoroethylene textile of the present invention.

FIG. 5 is a side view diagram of the second preferred embodiment of thepolytetrafluoroethylene textile of the present invention.

FIG. 6a is a photographic diagram of the polytetrafluoroethylene textilecomprising 75 denier polyester yarn layer, 200 denierpolytetrafluoroethylene structural layer and 20 denier spandex yarnlayer with the weight ratio of 61:37:2 after 50,000 wear resistantrevolutions; and FIG. 6b is a photographic diagram of thepolytetrafluoroethylene textile comprising 70 denier nylon yarn layerand 200 denier polytetrafluoroethylene structural layer with the weightratio of 38:62 after 40,000 wear resistant revolutions.

FIG. 7a is a photographic diagram of the knit-assisting part of thepresent invention; FIG. 7b is an enlarged diagram of FIG. 7a ; and FIG.8 is a photographic diagram of the knit-assisting part of the presentinvention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

For purposes of understanding the technical features, contents,advantages and technical effects achieved thereby, various embodimentsof the present invention will now be described in more detail withreference to the accompanying drawings. Drawings are used forillustrating and assisting in understanding the detailed description,not represent the real scale and precise configuration of the presentinvention. Therefore, the claims cope of the subject matter are notinterpreted or limited by the scale and configuration of theaccompanying drawings. Further, for purposes of explanation, in thedrawings, similar symbols typically identify similar components, unlesscontext dictates otherwise.

Referring to FIG. 1, FIG. 1 is a schematic flow diagram of the firstpreferred embodiment of the method of manufacturing thepolytetrafluoroethylene textile of the present invention. As shown inFIG. 1, the method of manufacturing a polytetrafluoroethylene textile ofthe present invention comprises at least the following steps S10 andS20. In step S10, providing a polytetrafluoroethylene yarn and anartificial fiber yarn. In step S20, performing a knitting process toknit the polytetrafluoroethylene yarn and the artificial fiber yarntogether to thereby obtain the polytetrafluoroethylene textile. Themanner for knitting the polytetrafluoroethylene yarn and the artificialfiber yarn can be, for example, plain weave or chain stitch, but notlimited thereto. Users can use the appropriate knitting or weavingmanner to knit or weave the polytetrafluoroethylene yarn and theartificial fiber yarn together depending on actual needs.

The polytetrafluoroethylene (PTFE) yarn can be manufactured, forexample, by a split spinning method, an extrusion spinning method, acarrier spinning method or a melt spinning method, but not limitedthereto. All the polytetrafluoroethylene yarns manufactured by anymethod or manner for manufacturing the polytetrafluoroethylene yarn arethe polytetrafluoroethylene yarn claimed by the present invention. Thepolytetrafluoroethylene yarn in the present invention is substantiallyfree of other ingredients or impurities, that is, the composition of thepolytetrafluoroethylene yarn is substantially 100%polytetrafluoroethylene. Or the polytetrafluoroethylene yarn can includeother ingredients or impurities. Users can select and use thepolytetrafluoroethylene yarn including or excluding other ingredients orimpurities depending on actual needs. The denier of thepolytetrafluoroethylene yarn is within a range of from 40 to 400deniers, preferably 200 deniers, but not limited thereto. Users can usethe polytetrafluoroethylene yarn with appropriate denier specificationdepending on actual needs.

The artificial fiber is also known as chemical fiber, which is the fibermanufactured by chemical method and include, but not limited to,polyester, nylon and spandex. In the present invention, the artificialfiber yarn can be, for example, selected from a group consisting ofnylon yarn, polyester yarn and spandex yarn. In one preferredembodiment, the artificial fiber yarn is such as nylon yarn, polyesteryarn or spandex yarn with single ingredient. In another preferredembodiment, the artificial fiber yarn is such as yarns with compositeingredients. For example, the artificial fiber yarn is the yarncomprising nylon and polyester ingredients; polyester and spandexingredients; or nylon, polyester and spandex ingredients. The denier ofthe nylon yarn can be, for example, within a range of from 20 to 280deniers, preferably 70 deniers, but not limited thereto. The denier ofthe polyester yarn can be, for example, within a range of from 20 to 300deniers, preferably 75 deniers, but not limited thereto. The denier ofthe spandex yarn can be, for example, within a range of from 15 to 70deniers, preferably 20 deniers, but not limited thereto. Moreover, inone preferred embodiment, the artificial fiber yarn is the nylon yarn,and a weight ratio of the nylon yarn to the polytetrafluoroethylene yarncan be, for example, within a range of 25-45:55-75. In another preferredembodiment, the artificial fiber yarn is consisted of the polyester yarnand the spandex yarn, and a weight ratio of the polyester yarn to thepolytetrafluoroethylene yarn to the spandex yarn can be, for example,within a range of 50-65:34-40:1-10. Users can use the artificial fiberyarn with appropriate ingredient(s) and specification depending onactual needs, and similarly, users can use the artificial fiber yarn andthe polytetrafluoroethylene yarn with appropriate content and ratiodepending on actual needs.

Referring to FIG. 2, FIG. 2 is a schematic flow diagram of the secondpreferred embodiment of the method of manufacturing thepolytetrafluoroethylene textile of the present invention. As shown inFIG. 2, the method of manufacturing a polytetrafluoroethylene textile ofthe present invention comprises at least the following steps S10, S20and S30. The difference between the second embodiment and the firstembodiment of the present invention is merely that in the secondembodiment, a pretreatment process S30 is further performed beforeperforming the knitting process S20 to make the polytetrafluoroethyleneyarn have at least one knit-assisting part for assisting knitting thepolytetrafluoroethylene yarn and the artificial fiber yarn together andconfining the artificial fiber yarn correspondingly to thereby obtainthe polytetrafluoroethylene textile.

The pretreatment process S30 can be, for example but not limited to,performed by gluing or twisting method so as to make thepolytetrafluoroethylene yarn have the knit-assisting part. The structureof the polytetrafluoroethylene yarn can be changed by the aforementionedgluing or twisting method to make the polytetrafluoroethylene yarn havethe knit-assisting part. Moreover, all regions or partial regions of thepolytetrafluoroethylene yarn can have the knit-assisting part, and theknit-assisting part can be regularly or irregularly distributed on thepolytetrafluoroethylene yarn. And, users can adjust the position and/orsize of the knit-assisting part depending on actual needs.

In addition, the pretreatment process S30 can also be performed to theartificial fiber yarn to make the artificial fiber yarn have at leastone knit-assisting part for assisting knitting thepolytetrafluoroethylene yarn and the artificial fiber yarn together andconfining the polytetrafluoroethylene yarn correspondingly to therebyobtain the polytetrafluoroethylene textile. In other words, thepretreatment process S30 can be performed to the polytetrafluoroethyleneyarn and/or the artificial fiber yarn by users depending on actual needsto make the polytetrafluoroethylene yarn and/or the artificial fiberyarn have at least one knit-assisting part.

In the present invention, a laminating process can be further performedto laminate a water repellent fabric with the polytetrafluoroethylenetextile together. Referring to FIG. 3, FIG. 3 is a schematic flowdiagram of the third preferred embodiment of the method of manufacturingthe polytetrafluoroethylene textile of the present invention. As shownin FIG. 3, the laminating process S40 is performed after the knittingprocess S20 to laminate the water repellent fabric with thepolytetrafluoroethylene textile together. The material of the waterrepellent fabric can be, for example, polyethylene terephthalate (PET),but not limited thereto. The water repellent fabric can comprise a waterrepellent structure layer and a transparent membrane structure layer,wherein the material of the water repellent structure layer can bepolyethylene terephthalate (PET), and the material of the transparentmembrane structure layer can be polyurethane (PU), but not limitedthereto. For example, the water repellent fabric and thepolytetrafluoroethylene textile can be laminated together by the methodof PU foam flame burning, PU wet glue spray paste or PUR hot meltadhesive paste. The aforementioned laminating methods of the waterrepellent fabric and the polytetrafluoroethylene textile are examples,but not limited thereto. Users can use appropriate laminating methods tolaminate the water repellent fabric and the polytetrafluoroethylenetextile together depending on actual needs.

The difference between the third embodiment and the first embodiment ofthe present invention is merely that in the third embodiment, alaminating process S40 is further performed to laminate the waterrepellent fabric with the polytetrafluoroethylene textile together afterperforming the knitting process S20. Moreover, in the third embodimentof the present invention, the pretreatment process S30 can also beperformed before performing the knitting process S20 to make thepolytetrafluoroethylene yarn have at least one knit-assisting part forassisting knitting the polytetrafluoroethylene yarn and the artificialfiber yarn together and confining the artificial fiber yarncorrespondingly to thereby obtain the polytetrafluoroethylene textile(in order to simplify the figure, the step S30 is not shown in FIG. 3).The method for performing the pretreatment process S30 is described inthe aforementioned second embodiment and will not be more detaileddescribed here.

Referring to FIG. 4, FIG. 4 is a side view diagram of the firstpreferred embodiment of the polytetrafluoroethylene textile of thepresent invention. The polytetrafluoroethylene textile of the presentinvention can be, for example, manufactured by the aforementioned methodof manufacturing a polytetrafluoroethylene textile. As shown in FIG. 4,the polytetrafluoroethylene textile can at least comprise an artificialfiber structural layer 10 and a polytetrafluoroethylene structural layer20. The artificial fiber structural layer 10 can comprise a plurality ofartificial fiber yarns, and the polytetrafluoroethylene structural layer20 can comprise a plurality of polytetrafluoroethylene yarns. And, apart of the polytetrafluoroethylene yarns of the polytetrafluoroethylenestructural layer 20 and a part of the artificial fiber yarns of theartificial fiber structural layer 10 are knitted together. The part ofthe polytetrafluoroethylene yarns of the polytetrafluoroethylenestructural layer 20 and the part of the artificial fiber yarns of theartificial fiber structural layer 10 can be knitted together by methodof plain weave or chain stitch, but not limited thereto. Users can usethe appropriate knitting or weaving manner to knit or weave thepolytetrafluoroethylene yarns and the artificial fiber yarns togetherdepending on actual needs.

The artificial fiber structural layer 10 can be, for example, selectedfrom a group consisting of nylon yarn layer, polyester yarn layer andspandex yarn layer. And, the nylon yarn layer can comprise a pluralityof nylon yarns, the polyester yarn layer can comprise a plurality ofpolyester yarns, and spandex yarn layer can comprise a plurality ofspandex yarns. As mentioned above, in one preferred embodiment, theartificial fiber structural layer 10 can comprise, for example, nylonyarns, polyester yarns or spandex yarns with single ingredient. Inanother preferred embodiment, the artificial fiber structural layer 10can comprise yarns with composite ingredients. For example, theartificial fiber structural layer 10 can comprise, for example, nylonyarns and polyester yarns; polyester yarns and spandex yarns; or nylonyarns, polyester yarns and spandex yarns.

The denier of the polytetrafluoroethylene yarns can be, for example,within a range of from 40 to 400 deniers, preferably 200 deniers, butnot limited thereto. Users can use the polytetrafluoroethylene yarnswith appropriate denier specification depending on actual needs. Thedenier of nylon yarns of the nylon yarn layer can be, for example,within a range of from 20 to 280 deniers, preferably 70 deniers, but notlimited thereto. The denier of polyester yarns of the polyester yarnlayer can be, for example, within a range of from 20 to 300 deniers,preferably 75 deniers, but not limited thereto. The denier of spandexyarns of the spandex yarn layer can be, for example, within a range offrom 15 to 70 deniers, preferably 20 deniers, but not limited thereto.Moreover, in one preferred embodiment, the artificial fiber structurallayer 10 is the nylon yarn layer, and a weight ratio of the nylon yarnlayer to the polytetrafluoroethylene structural layer 20 can be, forexample, within a range of 25-45:55-75. In another preferred embodiment,the artificial fiber structural layer 10 is consisted of the polyesteryarn layer and the spandex yarn layer, and a weight ratio of thepolyester yarn layer to the polytetrafluoroethylene structural layer 20to the spandex yarn layer can be, for example, within a range of50-65:34-40:1-10. Users can use the artificial fiber yarns withappropriate ingredient(s) and specification depending on actual needs,and similarly, users can use the artificial fiber yarns and thepolytetrafluoroethylene yarns with appropriate content and ratiodepending on actual needs.

The polytetrafluoroethylene textile of the present invention can furthercomprise a water repellent structural layer. Referring to FIG. 5, FIG. 5is a side view diagram of the second preferred embodiment of thepolytetrafluoroethylene textile of the present invention. As shown inFIG. 5, the difference between the second embodiment and the firstembodiment of the present invention is merely that thepolytetrafluoroethylene textile in the second embodiment furthercomprise the water repellent structural layer 30 disposed on theartificial fiber structural layer 10, and the water repellent structurallayer 30 and the polytetrafluoroethylene structural layer 20 can bedisposed on two opposite sides of the artificial fiber structural layer10 respectively. The water repellent structural layer 30 can be, forexample, polyethylene terephthalate (PET) structural layer, but notlimited thereto. In addition, a polyurethane (PU) structural layer 40can be further disposed between the water repellent structural layer 30and the artificial fiber structural layer 10. As mentioned above, thewater repellent structural layer 30, the polyurethane structural layer40 and the artificial fiber structural layer 10 can be laminatedtogether by the method of PU foam flame burning, PU wet glue spray pasteor PUR hot melt adhesive paste.

In one preferred embodiment, the artificial fiber structural layer 10 ofthe polytetrafluoroethylene textile in the present invention comprises70 denier nylon yarn layer, and the weight ratio of the nylon yarn layerto the 200 denier polytetrafluoroethylene structural layer 20 can be,for example, within a range of 25-45:55-75. Preferably, the weight ratioof the nylon yarn layer to the 200 denier polytetrafluoroethylenestructural layer 20 can be 38:62 (weight per unit area is 213±3% g/sm,0±3% g/y or 6.28±3% oz/sy). And, if the weight ratio of the nylon yarnlayer to the 200 denier polytetrafluoroethylene structural layer 20 is38:62, the number of the wear resistant revolutions of thepolytetrafluoroethylene textile is 40,000. In addition, the waterrepellent structural layer 30 and the polyurethane (PU) structural layer40 are further disposed on the artificial fiber structural layer 10 ofthe polytetrafluoroethylene textile of the present invention. In thispreferred embodiment, the overall polytetrafluoroethylene textile is akind of three layers waterproof and moisture permeable swatch and hascharacteristics of water vapor resistance (Ret) equal to or smaller than15 Pa*m²/W, hydrostatic pressure equal to or larger than 15,000 mmH₂O,and water repellent effect equal to or larger than 80 after washing 20times (AATCC 22). Water vapor resistance (Ret) is a fabricmoisture-penetrable method, to measure water vapor penetration fabricinput and output difference pressure.

In another preferred embodiment, the artificial fiber structural layer10 of the polytetrafluoroethylene textile in the present inventioncomprises 75 denier polyester yarn layer and 20 denier spandex yarnlayer, and the weight ratio of the weight ratio of the polyester yarnlayer to the 200 denier polytetrafluoroethylene structural layer 20 tothe spandex yarn layer can be, for example, within a range of50-65:34-40:1-10. Preferably, the weight ratio of the polyester yarnlayer to the 200 denier polytetrafluoroethylene structural layer 20 tothe spandex yarn layer can be 61:37:2 (weight per unit area is 247±5%g/sm, 0±5% g/y or 7.29±5% oz/sy). And, if the weight ratio of thepolyester yarn layer to the 200 denier polytetrafluoroethylenestructural layer 20 to the spandex yarn layer is 61:37:2, the number ofthe wear resistant revolutions of the polytetrafluoroethylene textile is50,000. In addition, the water repellent structural layer 30 and thepolyurethane (PU) structural layer 40 are further disposed on theartificial fiber structural layer 10 of the polytetrafluoroethylenetextile of the present invention. In this preferred embodiment, theoverall polytetrafluoroethylene textile is a kind of three layerswaterproof and moisture permeable swatch and has characteristics ofwater vapor resistance (Ret) equal to or smaller than 15 Pa*m²/W,hydrostatic pressure equal to or larger than 15,000 mmH₂O, and waterrepellent effect equal to or larger than 80 after washing 20 times(AATCC 22).

The abrasion resistance test of the fabric is a test to measure thecharacteristic of abrasion resistance of the fabric. The abrasionresistance test of the fabric is performed by repeatedly rubbing thefabric with other objects and determined the damage content of thefabric such as broken yarn, holes, fade and so on during the usingperiod. The abrasion resistance of the fabric can also be determined bythe weight loss of the fabric after a certain amount of wear. Under thesame conditions, the greater the weight loss, the worse the abrasionresistance of the fabric. Abrasion resistance is one of the importantindicators of textile product quality, and will directly affect thedurability and the using results of products.

The characteristic of the abrasion resistance of the aforementionedpolytetrafluoroethylene textile was measured by the following methods:performing the ASTM D4966 friction test standard by a MartindaleAbrasion Tester; rubbing the polytetrafluoroethylene textile with awoven fiber cloth with wool material according to a certain rotationtrack (Lissajous Figure: Lee's graphics); and evaluating the number ofthe wear resistant revolutions of the polytetrafluoroethylene textile,that is the rotation number of the wear resistant revolutions of thefabric due to friction when the broken yarn or hole of the test sampleis produced. The polytetrafluoroethylene textiles after the abrasionresistance test are shown in FIG. 6a and FIG. 6b , wherein FIG. 6a is aphotographic diagram of the polytetrafluoroethylene textile comprising75 denier polyester yarn layer, 200 denier polytetrafluoroethylenestructural layer and 20 denier spandex yarn layer with the weight ratioof 61:37:2 after 50,000 wear resistant revolutions, and FIG. 6b is aphotographic diagram of the polytetrafluoroethylene textile comprising70 denier nylon yarn layer and 200 denier polytetrafluoroethylenestructural layer with the weight ratio of 38:62 after 40,000 wearresistant revolutions. As can be seen in FIG. 6a and FIG. 6b , thepolytetrafluoroethylene textile of the present invention has a highdegree of abrasion resistance.

In the polytetrafluoroethylene textile of the present invention, thepolytetrafluoroethylene structural layer 20 has at least oneknit-assisting part 22. Referring to FIG. 7a , FIG. 7b and FIG. 8, FIG.7a is a photographic diagram of the knit-assisting part of the presentinvention; FIG. 7b is an enlarged diagram of FIG. 7a ; and FIG. 8 is aphotographic diagram of the knit-assisting part of the presentinvention. As shown in FIG. 7a , FIG. 7b and FIG. 8, thepolytetrafluoroethylene structural layer 20 has the knit-assisting part22 for assisting knitting a part of the polytetrafluoroethylene yarn anda part of the artificial fiber yarn together and confining the part ofthe artificial fiber yarn correspondingly to thereby obtain thepolytetrafluoroethylene textile of the present invention. For example,the knit-assisting part 22 can be an expanded structure formed by atleast two of the polytetrafluoroethylene yarns, and the part of theartificial fiber yarns of the artificial fiber structural layer 10 canbe configured to pass through the knit-assisting part 22 to thereby knitwith the at least two of the polytetrafluoroethylene yarns. Theknit-assisting part 22 can be manufactured by the aforementionedpretreatment process S30, but not limited thereto. By performing thepretreatment process S30 to make the polytetrafluoroethylene structurallayer 20 have the knit-assisting part 22, the artificial fiber yarns ofthe artificial fiber structural layer 10 can be knitted with thepolytetrafluoroethylene yarns of the polytetrafluoroethylene structurallayer 20 by passing the through the knit-assisting part 22 more easily,and the artificial fiber structural layer 10 and thepolytetrafluoroethylene structural layer 20 can be strongly knittedtogether. As mentioned above, all regions or partial regions of thepolytetrafluoroethylene structural layer 20 can have the knit-assistingpart 22, and the knit-assisting part 22 can be regularly or irregularlydistributed on the polytetrafluoroethylene structural layer 20. And,users can adjust the position and/or size of the knit-assisting part 22depending on actual needs.

In addition, as shown in FIG. 8, FIG. 8 is a top view ofpolytetrafluoroethylene textile. The polytetrafluoroethylene yarns ofthe polytetrafluoroethylene structural layer 20 and the artificial fiberyarns of the artificial fiber structural layer 10 can be knitted andregularly patterned. By designing the knitting location of thepolytetrafluoroethylene yarns and the artificial fiber yarns, thepattern style of the polytetrafluoroethylene structural layer 20 can bedesigned depending on actual needs. And, because of the low frictioncharacteristic of the polytetrafluoroethylene yarns, the characteristicsof low cost, high permeability and abrasion resistance can be achievedby designing the knitting pattern of the polytetrafluoroethylene yarnsand then knitting with the artificial fiber structural layer 10 withoutknitting with the artificial fiber yarns comprehensively.

In summary, in the polytetrafluoroethylene textile and the manufacturingmethod thereof of the present invention, the polytetrafluoroethylenetextile with characteristics of high durability and permeability can bemanufactured by knitting the polytetrafluoroethylene yarn(s) and theartificial fiber yarn(s) together. And, the pretreatment process isperformed before performing the knitting process to make thepolytetrafluoroethylene yarn have the knit-assisting part to therebyfacilitate knitting the polytetrafluoroethylene yarn and the artificialfiber yarn together and confining the artificial fiber yarncorrespondingly. Therefore, the structure of the polytetrafluoroethylenetextile manufactured by the method of the present invention is strong.Moreover, the abilities of waterproofing and moisture permeation of thepolytetrafluoroethylene textile can be improved by performing thelaminating process to laminate the water repellent fabric with thepolytetrafluoroethylene textile together. And, the manufacturedpolytetrafluoroethylene textile has excellent characteristics ofmoisture-proof, water resistance and water repellent by using specificmaterials and specifications of the artificial fiber yarn.

While the invention has been described by way of example(s) and in termsof the preferred embodiment(s), it is to be understood that theinvention is not limited thereto. On the contrary, it is intended tocover various modifications and similar arrangements and procedures, andthe scope of the appended claims therefore should be accorded thebroadest interpretation so as to encompass all such modifications andsimilar arrangements and procedures.

What is claimed is:
 1. A method of manufacturing apolytetrafluoroethylene textile, comprising: providing apolytetrafluoroethylene yarn and an artificial fiber yarn; andperforming a knitting process to knit the polytetrafluoroethylene yarnand the artificial fiber yarn together to thereby obtain thepolytetrafluoroethylene textile, wherein a pretreatment process isfurther performed before performing the knitting process to make thepolytetrafluoroethylene yarn have at least one knit-assisting part forassisting knitting the polytetrafluoroethylene yarn and the artificialfiber yarn together and confining the artificial fiber yarncorrespondingly to thereby obtain the polytetrafluoroethylene textile,wherein the knit-assisting part is an expanded structure formed by atleast two of the polytetrafluoroethylene yarns, and a part of theartificial fiber yarn is configured to pass through the knit-assistingpart to thereby knit with the at least two of thepolytetrafluoroethylene yarns.
 2. The method of claim 1, furthercomprising performing a laminating process to laminate a water repellentfabric with the polytetrafluoroethylene textile together.
 3. The methodof claim 1, wherein the artificial fiber yarn is selected from a groupconsisting of nylon yarn, polyester yarn and spandex yarn, the denier ofthe polytetrafluoroethylene yarn being within a range of from 40 to 400denier, the denier of the nylon yarn being within a range of from 20 to280 denier, the denier of the polyester yarn being within a range offrom 20 to 300 denier, the denier of the spandex yarn being within arange of from 15 to 70 denier.
 4. The method of claim 3, wherein aweight ratio of the nylon yarn to the polytetrafluoroethylene yarn iswithin a range of 25-45:55-75 if the artificial fiber yarn is the nylonyarn, and a weight ratio of the polyester yarn to thepolytetrafluoroethylene yarn to the spandex yarn is within a range of50-65:34-40:1-10 if the artificial fiber yarn is consisted of thepolyester yarn and the spandex yarn.
 5. A polytetrafluoroethylenetextile manufactured according to the method as claimed in claim 1,comprising: an artificial fiber structural layer comprising a pluralityof artificial fiber yarns; and a polytetrafluoroethylene structurallayer comprising a plurality of polytetrafluoroethylene yarns, and apart of the polytetrafluoroethylene yarns of the polytetrafluoroethylenestructural layer and a part of the artificial fiber yarns of theartificial fiber structural layer are knitted together, wherein thepolytetrafluoroethylene structural layer has at least one knit-assistingpart for assisting knitting the part of the polytetrafluoroethyleneyarns and the part of the artificial fiber yarns together and confiningthe part of the artificial fiber yarns correspondingly to thereby obtainthe polytetrafluoroethylene textile, wherein the knit-assisting part isan expanded structure formed by at least two of thepolytetrafluoroethylene yarns, and the part of the artificial fiberyarns of the artificial fiber structural layer is configured to passthrough the knit-assisting part to thereby knit with the at least two ofthe polytetrafluoroethylene yarns.
 6. The polytetrafluoroethylenetextile of claim 5, further comprising a water repellent structurallayer disposed on the artificial fiber structural layer, and the waterrepellent structural layer and the polytetrafluoroethylene structurallayer are disposed on two opposite sides of the artificial fiberstructural layer respectively.
 7. The polytetrafluoroethylene textile ofclaim 5, wherein the artificial fiber structural layer is selected froma group consisting of nylon yarn layer, polyester yarn layer and spandexyarn layer, the denier of the polytetrafluoroethylene yarns being withina range of from 40 to 400 denier, the denier of nylon yarns of the nylonyarn layer being within a range of from 20 to 280 denier, the denier ofpolyester yarns of the polyester yarn layer being within a range of from20 to 300 denier, the denier of spandex yarns of the spandex yarn layerbeing within a range of from 15 to 70 denier, and a weight ratio of thenylon yarn layer to the polytetrafluoroethylene structural layer iswithin a range of 25-45:55-75 if the artificial fiber structural layeris the nylon yarn layer, and a weight ratio of the polyester yarn layerto the polytetrafluoroethylene structural layer to the spandex yarnlayer is within a range of 50-65:34-40:1-10 if the artificial fiberstructural layer is consisted of the polyester yarn layer and thespandex yarn layer.